James whitblaw



(NOMod 1- v J. WHITELA W Gard Guttingbr Stripping Machine No. 234,829.PatentedNov. 23,5880.

UNTTED STATES PATENT @rrrca.

JAMES WHITELAWV, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO ST.LOUIS TYPE FOUNDRY, OF SAME PLACE.

CARD CUTTING OR STRIPPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 234,829, dated November23, 1880.

Application filed October 6, 1880. (No model.)

To all whom it may concern:

Be it known that I, JAMES WHITELAW, of the city of St. Louis, in theState of Missouri, have invented certain new and useful Improvements inCard Cutting and Stripping Machines, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, making part of this specification.

My improvement applies more especially to the described apparatus forclamping the card (or other material) in place, and at the same timeholding the circular cutter in contact with the fixed knife.

In the drawings, Figure 1 is a top View of the machine. Figs. 2 and 3are enlarged part transverse sections at x m, Fig. 1, showing theclamping-bar in its upper and lower positions, respectively. Fig. 4 is adetail perspective 2o enlarged. Fig. 5 is a detail perspective View ofthe end of the clampingbar. Fig. 6 is a detail back view of part of thetable, showing one of the removable guides in position.

The machine, in the form shown, is intended to stand on a bench.

A is the table or base-plate, having at the two front corners standardsB B, with guideslots 1), to receive the lugs c at the endsof theclamping-bar O.

The clamping bar or rail has a strictlyvertical movement, being guidedby the lugs c and by the sides of the slots 0 at its ends, through whichpass the pivot-pins D of the cam-bar E.

3 5 The pivot-pins D are fixed to the standards by nuts (I (1 bearingagainst the sides of the standardsand screwing upon the pins, and thepins are made adjustable in the standards in vertical slots, throughwhich they pass.

At both ends of the cam-bar E are cams F, which work between flanges c cat each end of the clamping-bar, to raise and lower the same.

The cams are thrown into the position shown in Figs. 2 and at by aspring, G, at-

tached at the upper end to a lug, e, at the back of the cam-bar, andattached at the lower end to the table A. Thus the spring lifts the camsand with them the clamping bar, so that the card-board or other materialto be out can be introduced or be moved beneath the clamping-bar.

H is the knife, fixed in the front edge of the table. I is acircularcutter, which runs along in contact with the edge of the knife.

The circular cutter is axially pivoted to a head, J, sliding upon around bar, K, whose ends are attached to the standards B. The head J hascapacity for lateral and oscillatory movement on the bar K, to bring theedge of the circular turning cutter in contact with the edge of theknife and allow it to travel along it. The head is moved by means of ahandle, j.

L is a lug upon the head J, giving bearing to a short shaft, 2', havingat the fore end an arm, M, with a handle, m, which is in proximity tothe handle j, so that it can be grasped at once with the same, and bythe pressure of the hand the arm M is drawn down and draws down theroller-arm N at the other end of the shaft 2'.

The arm N carries a wheel or roller, 0, which bears upon a flange, E,extending along and forming the upper front edge of the cam-bar. Thepressure of the wheel on. the descent of the arm N forces down the frontedge of the cam-bar and depresses the cams F, and with them theclamping-bar, into the position shown in Fig. 3.

The reaction upon the head J of pressure of the wheel 0 upon the cam-baracts to tilt out the head J and force the rotary cutter against theknife.

When the grasp upon the handles j m is loosened, the spring Gr throwsthe cams and bars into the position shown in Fig. 2, allowing the cardor other material to be moved beneath the clampingbar.

P is a gage-bar, supported on two slide-rods, It, adjustable in thetable A, and held in position the required distance from the knife bysetscrews S.

The table has transverse channels a perpendicnlar to the edge of theknife, fitted to rehaving bearing upon the oscillating cutterceiveguide-strips a, to keep the material head J, and actuated by handle M m,for the 10 square on the table. purpose set forth.

I claim as my invention The combination, with a clamping-bar, of acam-bar, E, acting to raise and lower the clamping-bar, and operated inits downward movement by a pressure-Wheel, O, on shaft '5,

JAMES WHITELAW.

Witnesses:

SAML. KNIGHT, JAS. G. PAVYER.

